Warlock Emperors were terrifying beings standing at the very pinnacle of the universe containing the Warlock World. Throughout the entire universe, there were basically only a few dangerous grounds capable of threatening their lives.
Within the World of Warlocks, only the Styx River in the Netherworld could threaten powerhouses at the level of Warlock Emperors.
The Styx River was the embodiment of the death laws of the universe containing the Warlock World. Without a god to receive them, after most intelligent lifeforms perished, their souls would enter the Styx River, be broken down by it, and become part of the river.
Even after Eternals fell, if their souls were not taken away by their enemies, they too would sink into the Styx River and become part of it.
Any Emperor could employ heaven-defying spells to draw some Styx River Water for all sorts of experiments, yet not a single Emperor could control the Styx River.
The Styx River possessed countless tributaries, running through countless planes and forming countless Netherworlds within them.
For a powerhouse like Yang Feng, entering the Netherworld was as easy as turning his hand over. Yet entering its deepest reaches was exceedingly dangerous. With the slightest carelessness, even an Emperor could be corroded by the Styx River, turned into an idiot, and have his soul sink into its waters.
Lord of Demon Sounds rolled his eyes at Yang Feng. "If entering the deepest part of the Netherworld were so easy, Lord of Death would have long since resurrected his wife. Would he still be waiting for you?"
Yang Feng smiled. "That is true."
In order to resurrect his wife, Lord of Death had delved deeply into the mysteries of life and death. On the path of life and death, he surpassed Yang Feng by who knew how